Serving Peterborough, NH and surrounding areas
Approved
Free estimates
Emergency services offered
Warranties offered
"Had an issue with my a/c unit leaking water and I called granite state refrigeration they had this nice polite guy named Keenan come out and he fixed it in no time!!! Amazing thank you !"
+56
Serving Peterborough, NH and surrounding areas
Approved
In business since 2005
Free estimates
Emergency services offered
"I am writing to express my deep disappointment with the service provided by McGinley & Sons. Despite multiple attempts to resolve this issue, I have yet to receive the promised refund for work that was never completed. As a cancer survivor undergoing surveillance scans, the refund would greatly assist in covering my medical expenses. The lack of response and follow-through has added unnecessary stress during an already difficult time. In addition to this, I had to hire a lawyer to recover my down payment, which cost me additional money. Moreover, he did not offer to compensate me for the extra expenses, including hiring an electrician to install a wire for the heat pump he could not install. Despite repeated attempts to have the deposit returned, I finally received it after engaging legal assistance. I hope this review will encourage McGinley & Sons to address this matter promptly and fairly."
+5
Serving Peterborough, NH and surrounding areas
Approved
In business since 1982
Free estimates
Emergency services offered
"Sanford Tempwrature Control provide excellent service and AC installation. The quote process was great with several options provided and thoroughly explained what would work most efficiently for my house. Removal and installation was top notch. They will be my first call for future work."
Serving Peterborough, NH and surrounding areas
Approved
In business since 1977
Free estimates
Emergency services offered
"Excellent knowledgeable company to work with. We were struck by lightning and were left with power to less than half the house. They came at once, tracked the fault down behind some wall paneling, did considerable wiring, replaced the wall to original condition. They recommended we install a MOV and corrected some non-code deficiencies. We are delighted with the work, the attention to detail so rarely found these days, and the price was very reasonable considering the length of the job from start to finish. I don't think you'd find more competent personable electricians than this company. I'd recommend them very highly!"
Serving Peterborough, NH and surrounding areas
Approved
Super Service Award Winner
Free estimates
Emergency services offered
Small jobs welcome
"Sidewinder Industries was very knowledgeable, accessible, and helpful. Sidewinder Industries went out of its way to help and support. Thank you"
+15
Serving Peterborough, NH and surrounding areas
Approved
Free estimates
Credit card accepted
"Tristan built a custom entryway bench with storage that fits our space well. Quality is fantastic and the price was fair. Communication was smooth from start to finish. I’ll be calling him again for the next project."
Serving Peterborough, NH and surrounding areas
Approved
In business since 2022
Free estimates
Credit card accepted
With more than 15 yrs of experience, Chaviano HVAC is dedicated to providing our customers with the best quality at a great price. We are here to build relationships with our customers and communities and to provide our employees with a great place to work. We look forward to working with you!
Serving Peterborough, NH and surrounding areas
Approved
In business since 2009
Free estimates
Credit card accepted
With over 6 years of experience Prime Time Mechanical, LLC is one of New Hampshire's premier HVAC contractors. We specialize in all types of installations and repairs from gas and oil furnaces, boilers, water heaters, and gas piping. Our staff takes pride in providing our customers with the highest quality of work and customer service. Give us a call today!
Serving Peterborough, NH and surrounding areas
Approved
In business since 2000
Free estimates
Small jobs welcome
We are Tom and Ryan - here to provide the quality of work that we can be proud of at the end of the day. From quoting to designing to installing we are there through the whole process and answer questions directly. We would love to check out your next project! \n
+36
Serving Peterborough, NH and surrounding areas
Approved
In business since 2025
Free estimates
Credit card accepted
KPB Service Company LLC has18 years of experience with 24/7 on call services. We strive for perfection in commercial and residential. give us a call for your free quote.
Most professional HVAC technicians require two to three hours to complete an expansion valve replacement. The timeframe depends on your unit's accessibility and whether additional repairs are needed. The process involves recovering refrigerant, removing the old valve, installing the new component, and recharging the system. Scheduling during less busy seasons may result in more convenient appointment times.
Operating your air conditioner with a malfunctioning expansion valve isn't advisable. Continuing to run the system could potentially damage other components, particularly your compressor, which is significantly more expensive to replace. If you notice performance issues like inconsistent cooling or unusual noises, it's best to have your system inspected before continuing regular use.
Expansion valves don't have a standard replacement schedule, as their longevity depends on system usage, maintenance frequency, and environmental factors. Regular professional maintenance helps identify potential valve issues before they cause system failure. Having your HVAC system serviced annually allows technicians to monitor component condition and recommend preventative replacements when necessary.
Refrigerant leaks require prompt professional attention. If your expansion valve is leaking, you'll likely notice reduced cooling performance and possibly hear hissing sounds near the unit. Addressing leaks quickly prevents further system inefficiency and avoids the environmental impact of released refrigerant. Your HVAC technician will need to repair the leak and recharge the system with the proper refrigerant type and amount.
Because many AC issues present similar symptoms, professional diagnosis is recommended. Problems like inadequate cooling, inconsistent temperatures, or strange noises could indicate expansion valve issues, but might also stem from refrigerant leaks, electrical problems, or airflow restrictions. A qualified HVAC technician has the tools and expertise to accurately identify the root cause and recommend appropriate repairs.
From average costs to expert advice, get all the answers you need to get your job done.
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